| Title | Value |
|---|---|
| Class A power : | 2x 30W (20Hz...20Khz, 8 Ohm) |
| 2x 30W (10Hz...30Khz, 4 Ohm) | |
| THD : | < 0,01% (10Hz...30Khz, 8 Ohm, rated power) |
| < 0,005% (10Hz...30Khz, 8 Ohm, 15W) | |
| < 0,005% (10Hz...30Khz, 8 Ohm, 1W) | |
| IMD : | < 0,01% (20Hz...20Khz, 8 Ohm) |
| Power bandwidth : | 10Hz...30Khz (full power) |
| Frequency response : | 2Hz...150Khz (+0 / -1dB) |
| S/N ratio : | 106dB |
| Damping factor : | 60 (20Hz...20Khz) |
| Inputs : | 1V / 50kOhm |
| PC : | 280W (original models) |
| 240W (export models) | |
| Dimensions : | 42 x 15,3 x 37cm |
| Weight : | 22kg. |
| List price : | 120,000¥ (1976) |
Pioneer M-22
june 1976
The Pioneer M-22 is the original power amplifier from the Series 20 : old style Class A with no circuit trickery or audiophile touches - except where it really counts : power transformers, capacitors, resistors, chassis and ground paths.
The M-22 is a sound bolid.
"Open-guts" style with massive diecast heatsinks and chassis, four 33,000µF caps, full dual-mono layout.
If you don't mind having loudspeaker cables running in front of your rig... not very tidy.
But if you have an M-22 just for its sound qualities... all's fine : good-looking box that acts as room-heater on the side and ultimately makes wonderful music.
The dedicated japanese catalog is now at hand (2011) but nowhere near being translated...
A real M-22 here.
page online since : july 2008
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